Data reliability study: avalanche size estimates and outlines

This dataset contains the data used and collected to investigate the reliability of avalanche size estimates and avalanche outlines (see related publications). Namely this is

• the 10 pictures depicting avalanches
• the survey results from the 170 participants

• the pictures of the six avalanches
• the avalanche outlines mapped by the 10 participants
• the reference mapped from the georeferenced photographs

• the orthophotos in the four different resolutions (2m, 1m, 50cm, 25cm)
• the area of interest (AoI) delimiting the research area
• the avalanche mappings in each resolution for all five participants
• the shade masks used to separate illuminated and shaded areas

The acquisition of the orthophotos has been partially supported by the Swiss National Science Foundation (SNF; Grant N°200021_172800).

• Swiss National Science Foundation (SNF) (Grant/Award: N°200021_172800)

Hafner E.D., Techel F., Caye Daudt R., Wegner J.D., Schindler K., Bühler Y. (2023) Avalanche size estimation and avalanche outline determination by experts: reliability and implications for practice. Nat. Hazards Earth Syst. Sci. 23(8), 2895-2914. doi.org/10.5194/nhess-23-2895-2023